class_docstr: Raised when a Proj error occurs.
code: def __init__(self, error_message: str) -> None:
      proj_error = _get_proj_error()
      if proj_error is not None:
          error_message = (
              f"{error_message}: (Internal Proj Error: {proj_error})"
          )
          _clear_proj_error()
      super().__init__(error_message)
  
file_path: pyproj/pyproj/exceptions.py
imports: from pyproj._datadir import _clear_proj_error, _get_proj_error
label_desc: Use image node_id 1 to create a new ProjError object from inherited base classes: RuntimeError with example: obj = ProjError(error_message)